HP and anemia (phenotype): Laboratory findings indicated mild anemia (hemoglobin: 11.8 g/dL; reference range, 11.9-14.9 g/dL), mildly elevated total bilirubin levels (1.27 mg/dL; reference range, 0.25-1.10 mg/dL), and undetectable haptoglobin (<10 mg/dL), suggestive of ongoing hemolysis.